Shearing self-propelled suspensions: Arrest of coarsening and suppression of giant density fluctuations

G. P. Saracco; G. Gonnella; D. Marenduzzo; E. Orlandini

doi:10.1103/PhysRevE.84.031930

Shearing self-propelled suspensions: Arrest of coarsening and suppression of giant density fluctuations

G. P. Saracco, G. Gonnella, D. Marenduzzo, E. Orlandini

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

We study the effect of a linear shear flow on a collection of interacting active, self-propelled particles modeled via the Vicsek model. The imposed flow has a dramatic effect on the behavior of the model. We find that in the presence of shear there is no order-disorder transition, and that coarsening of the domains is arrested. Shear also suppresses the so-called giant density fluctuations that are observed in the quiescent limit.

Original language	English
Article number	031930
Pages (from-to)	-
Number of pages	5
Journal	Physical Review E
Volume	84
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevE.84.031930
Publication status	Published - 29 Sept 2011

Keywords / Materials (for Non-textual outputs)

PHASE-SEPARATION
DYNAMICS
MODEL
PARTICLES
TRANSPORT

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10.1103/PhysRevE.84.031930

Edinbugrh Soft Matter and Statistical Physics Programme Grant Renewal
Cates, M., Poon, W., Ackland, G., Clegg, P., Evans, M., MacPhee, C. & Marenduzzo, D.
EPSRC
1/10/07 → 31/03/12
Project: Research

Cite this

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abstract = "We study the effect of a linear shear flow on a collection of interacting active, self-propelled particles modeled via the Vicsek model. The imposed flow has a dramatic effect on the behavior of the model. We find that in the presence of shear there is no order-disorder transition, and that coarsening of the domains is arrested. Shear also suppresses the so-called giant density fluctuations that are observed in the quiescent limit.",

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AU - Saracco, G. P.

AU - Gonnella, G.

AU - Marenduzzo, D.

AU - Orlandini, E.

PY - 2011/9/29

Y1 - 2011/9/29

N2 - We study the effect of a linear shear flow on a collection of interacting active, self-propelled particles modeled via the Vicsek model. The imposed flow has a dramatic effect on the behavior of the model. We find that in the presence of shear there is no order-disorder transition, and that coarsening of the domains is arrested. Shear also suppresses the so-called giant density fluctuations that are observed in the quiescent limit.

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KW - PARTICLES

KW - TRANSPORT

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DO - 10.1103/PhysRevE.84.031930

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Shearing self-propelled suspensions: Arrest of coarsening and suppression of giant density fluctuations

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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Projects

Edinbugrh Soft Matter and Statistical Physics Programme Grant Renewal

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